<template>
  <div class="site-wrapper site-page--login">
    <div class="site-content__wrapper">
      <div class="site-content">
        <h1 style="color: white;padding-top: 100px">实践管理系统</h1>
        <el-form :model="dataForm" :rules="dataRule" ref="dataForm" @keyup.enter.native="dataFormSubmit()" status-icon  style="margin-top: 20px">
          <el-form-item prop="userName" style="width: 350px;margin: 10px auto;">
            <el-input v-model="dataForm.username" placeholder="请输入用户名"></el-input>
          </el-form-item>
          <el-form-item prop="password" style="width: 350px;margin: 10px auto">
            <el-input v-model="dataForm.password" type="password" placeholder="请输入密码"></el-input>
          </el-form-item>
          <el-form-item prop="captcha" style="width: 350px;margin: 10px auto">
            <el-row :gutter="20">
              <el-col :span="14">
                <el-input v-model="dataForm.captcha" placeholder="验证码">
                </el-input>
              </el-col>
              <el-col :span="10" class="login-captcha">
                <img :src="captchaPath" @click="getCaptcha()" alt="" >
              </el-col>
            </el-row>
          </el-form-item>
          <el-form-item>
            <el-button class="login-btn-submit" type="primary" @click="dataFormSubmit()" style="width: 80px;margin: 10px auto">登录</el-button>
          </el-form-item>
        </el-form>
      </div>
    </div>
  </div>
</template>
<title>系统管理员登录</title>
<script>
  import * as types from '../store/mutation-types'
  import { mapMutations } from 'vuex'
  import API from '@/api'

  export default {
    name: "adminlogin",
    data(){
      return {
        dataForm: {
          universityid:0,
          username: '',
          password: '',
          userid: '',
          captcha: ''
        },
        dataRule: {
          username: [
            { required: true, message: '用户名不能为空', trigger: 'blur' }
          ],
          password: [
            { required: true, message: '密码不能为空', trigger: 'blur' }
          ],
          captcha: [
            { required: true, message: '验证码不能为空', trigger: 'blur' }
          ]
        },
        user:{},
        captchaPath: '/api/captcha.jpg'
      }
    },
    methods:{
      dataFormSubmit(){
        API.common.toLogin(this.dataForm).then((res)=>{
          if(!res.data.code){
            this.$cookie.set('token', res.data.token, { expires: `${res.data.expire || 0}s` }); //token失效时间
            localStorage.setItem("CurrentUser",JSON.stringify(res.data.user.id));
            this.$store.commit(types.LOGIN,res.data.token);
            this.$message({
              "message":"登录成功",
              "type":"success"
            });
            this.$store.state.contentTabs.length = 0; //清空state中存储的tab项
            this.dataForm.userid=res.data.user.id;
            this.$router.push({path:"/home"});  //登录显示的首页
          }else {
            this.$message({
              "message":res.data.msg,
              "type":"error"
            });
            this.getCaptcha();
          }
        }).catch((error)=>{
          console.log(error);
        })
      },
      getCaptcha(){
        this.captchaPath='/api/captcha.jpg?t='+new Date();
      },
      ...mapMutations(['UPDATE_MENU_NAV_LIST', 'UPDATE_CONTENT_TABS_ACTIVE_NAME'])
    },
    mounted(){
      this.getCaptcha();
    }
  }
</script>
<style lang="scss" scoped>
  .site-wrapper.site-page--login {
    position: absolute;
    top: 0;
    right: 0;
    bottom: 0;
    left: 0;
    background-color: rgba(38, 50, 60, .4);
    overflow: hidden;
    &:before {
      position: fixed;
      top: 0;
      left: 0;
      z-index: -1;
      width: 100%;
      height: 100%;
      content: "";
      background-image: url('../assets/img/login_background.jpg');
      background-size: cover;
    }
    .site-content__wrapper {
      position: absolute;
      top: 0;
      right: 0;
      bottom: 0;
      left: 0;
      padding: 0;
      margin: 0;
      overflow-x: hidden;
      overflow-y: hidden;
      background-color: transparent;
    }
    .site-content {
      min-height: 100%;
      padding: 70px 100px 0 30px;
    }
    .brand-info {
      right:0;
      margin: 200px 0 0 700px;
      color: #fff;
    }
    .login-title {
      font-size: 16px;
    }
    .login-captcha {
      overflow: hidden;
      > img {
        width: 100%;
        cursor: pointer;
      }
    }
    .login-btn-submit {
      width: 100%;
      margin-top: 20px;
    }
  }
</style>

